Control Valve

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WHIRLPOOL KENMORE WASHER WASHING MACHINE WATER INLET CONTROL VALVE 8540043
WHIRLPOOL KENMORE WASHER WASHING MACHINE WATER INLET CONTROL VALVE 8540043
$11.99
quality
HYDRAULIC CONTROL VALVE ASSEMBLY 918 AGCO GARDEN TRACTOR SIMPLICITY
HYDRAULIC CONTROL VALVE ASSEMBLY 918 AGCO GARDEN TRACTOR SIMPLICITY
$95.00
quality
HUNTER PGV075 ASV 3 4 Tx THREAD ANTI SIPHON PRO VALVE W FLOW CONTROL PGV ASV
HUNTER PGV075 ASV 3 4 Tx THREAD ANTI SIPHON PRO VALVE W FLOW CONTROL PGV ASV
$17.37
quality
HUNTER PGV075ASV S 3 4 19mmSLIP X SLIP ANTI SIPHON VALVE FLOW CONTROL PGV ASV
HUNTER PGV075ASV S 3 4 19mmSLIP X SLIP ANTI SIPHON VALVE FLOW CONTROL PGV ASV
$17.37
quality
HUNTER PGV101 ASV 1 T x THREAD ANTI SIPHON PRO VALVE WITH FLOW CONTROL PGV ASV
HUNTER PGV101 ASV 1 T x THREAD ANTI SIPHON PRO VALVE WITH FLOW CONTROL PGV ASV
$18.35
quality
HUNTER PGV101 ASV S 1 SLIP X SLIP PRO ANTI SIPHON VALVE WITH FLOW CONTROL PGV
HUNTER PGV101 ASV S 1 SLIP X SLIP PRO ANTI SIPHON VALVE WITH FLOW CONTROL PGV
$18.35
quality
Shower Flow Control Valves KES SOLID Brass Shower Arm Diverter Valve Bathroom
Shower Flow Control Valves KES SOLID Brass Shower Arm Diverter Valve Bathroom
$14.29
quality
G1 2 Shower Head Flow Control Shut Off Valve Brass Saving Water w ABS Handle
G1 2 Shower Head Flow Control Shut Off Valve Brass Saving Water w ABS Handle
$13.99
quality
Orbit 57280 Auto In Line Electric Sprinkler Control Valve 3 4 NPT
Orbit 57280 Auto In Line Electric Sprinkler Control Valve 3 4 NPT
$22.05
quality
Delta Classic 1 Handle Temperature Control Valve Trim Kit in Chrome
Delta Classic 1 Handle Temperature Control Valve Trim Kit in Chrome
$35.99
quality
Pentair SolarTouch Solar Control System w Valve  Actuator 521592
Pentair SolarTouch Solar Control System w Valve Actuator 521592
$279.95
quality
Kohler Kohler T10423 4V BN Memoirs Volume Control Valve Trim w Stately
Kohler Kohler T10423 4V BN Memoirs Volume Control Valve Trim w Stately
$155.93
quality
Delta Dryden Monitor 1 Handle Volume  Temperature Control Valve Trim Kit
Delta Dryden Monitor 1 Handle Volume Temperature Control Valve Trim Kit
$49.99
quality
DeVibliss Pressure Washer Easy Start Control Valve 16776
DeVibliss Pressure Washer Easy Start Control Valve 16776
$22.50
quality
NDS Flo Control Swing Check Valve PVC 1 2 Hub Connection 1520 05
NDS Flo Control Swing Check Valve PVC 1 2 Hub Connection 1520 05
$16.00
quality
Reliance 301 Series 1 Inch Honeywell Electronic LP Gas Control Valve Thermostat
Reliance 301 Series 1 Inch Honeywell Electronic LP Gas Control Valve Thermostat
$149.99
quality
Reliance 401 Series 2 In Honeywell Electronic LP Gas Control Valve Thermostat
Reliance 401 Series 2 In Honeywell Electronic LP Gas Control Valve Thermostat
$199.99
quality
Reliance 400Series 2In Honeywell Electronic Natural Gas Control Valve Thermostat
Reliance 400Series 2In Honeywell Electronic Natural Gas Control Valve Thermostat
$199.99
quality
Magma Grills Regulator Control Valve Model 6001
Magma Grills Regulator Control Valve Model 6001
$24.99
quality
Windemere 1 Handle Temperature Control Valve Trim Kit Oil Rubbed Bronze
Windemere 1 Handle Temperature Control Valve Trim Kit Oil Rubbed Bronze
$44.99
quality
John Deere Selective Control Valve W Couplers 425 445 455 AM115171
John Deere Selective Control Valve W Couplers 425 445 455 AM115171
$149.99
quality
chrome SHOWERHEAD CONTROL VALVE SHOWER HEAD FLOW controller knob bath BRASSmetal
chrome SHOWERHEAD CONTROL VALVE SHOWER HEAD FLOW controller knob bath BRASSmetal
$11.99
quality
Rain Bird 1 Commercial Control Zone Kit with Pressure Regulating Basket Filter
Rain Bird 1 Commercial Control Zone Kit with Pressure Regulating Basket Filter
$52.00
quality
Yakult Square Manual Bathroom Shower Mixer Valve Control Pattern
Yakult Square Manual Bathroom Shower Mixer Valve Control Pattern
$75.99
quality
Kohler T10428 4C BN Memoirs volume control valve trim in Brushed Nickel
Kohler T10428 4C BN Memoirs volume control valve trim in Brushed Nickel
$75.00
quality
Bolens QT16 hydraulic control valve
Bolens QT16 hydraulic control valve
$24.00
quality
ORGL 1378348 Rainbird CPF Automatic Sprinkler Valve With Flow Control 3 4 in
ORGL 1378348 Rainbird CPF Automatic Sprinkler Valve With Flow Control 3 4 in
$40.04
quality
Hayward Pro Series Vari Flo Replacement Control Valve Assembly w Gauge SP0710X62
Hayward Pro Series Vari Flo Replacement Control Valve Assembly w Gauge SP0710X62
$103.99
quality
ITT General Controls Magnetic Valve K3A444
ITT General Controls Magnetic Valve K3A444
$50.00
quality
Irritrol 100P2 Century Plus Series Sprinkler Valve w Flow Control 2 Threaded
Irritrol 100P2 Century Plus Series Sprinkler Valve w Flow Control 2 Threaded
$97.95
quality
DIG Irrigation Timer Controller Valve Water Programmable Digital 710A 200 2
DIG Irrigation Timer Controller Valve Water Programmable Digital 710A 200 2
$80.00
quality
Toro EZF 26 94 EZ Flo Plus Control Valve 1 NPT F x F W Flow Control and DCLS
Toro EZF 26 94 EZ Flo Plus Control Valve 1 NPT F x F W Flow Control and DCLS
$59.28
quality
Toro 260 06 04 1 FNPT Female National Pipe Thread W O Flow Control
Toro 260 06 04 1 FNPT Female National Pipe Thread W O Flow Control
$28.71
quality
Dry Chemical Fire Control Extinguisher w Impact Resistant Metal Valve Assembly
Dry Chemical Fire Control Extinguisher w Impact Resistant Metal Valve Assembly
$85.95
quality
Kohler GP77548 Coralais Valve Kit Single Control Faucets NEW
Kohler GP77548 Coralais Valve Kit Single Control Faucets NEW
$19.99
quality
Danze D135300BT 3 4 in Volume Control and Shut Off Valve in Rough Brass
Danze D135300BT 3 4 in Volume Control and Shut Off Valve in Rough Brass
$62.40
quality
Danze D115500BT Single Control Washerless Pressure Balance Tub and Shower Valve
Danze D115500BT Single Control Washerless Pressure Balance Tub and Shower Valve
$55.25
quality
Danze D115000BT Single Control Pressure Balance Mixing Valve Less Screwdriver St
Danze D115000BT Single Control Pressure Balance Mixing Valve Less Screwdriver St
$63.70
quality
Danze D113010BT Single Control Pressure Balance Mixing Valve with Diverter and S
Danze D113010BT Single Control Pressure Balance Mixing Valve with Diverter and S
$113.75
quality
Danze D112010BT Single Control Pressure Balance Mixing Valve with Screwdriver St
Danze D112010BT Single Control Pressure Balance Mixing Valve with Screwdriver St
$92.30
quality
Honeywell  WV8840B1117 Gas Control Valve  Used  Works Great
Honeywell WV8840B1117 Gas Control Valve Used Works Great
$50.00
quality
Heavy Duty 4port 26 Amp Air Compressor Pressure Switch Control Valve 140 175 PSI
Heavy Duty 4port 26 Amp Air Compressor Pressure Switch Control Valve 140 175 PSI
$18.95
quality
Haiying Shower Head Flow Control Valves Brass Shower Head Shut Off Valve With Br
Haiying Shower Head Flow Control Valves Brass Shower Head Shut Off Valve With Br
$11.11
quality
k3012 brass shower flow control turn angle valve water pressure reducing
k3012 brass shower flow control turn angle valve water pressure reducing
$11.15
quality
Kohler K T14490 4 BGD Brushed Gold Purist Volume Control Valve Trim
Kohler K T14490 4 BGD Brushed Gold Purist Volume Control Valve Trim
$264.61
quality
sa906cp brass flow control valve
sa906cp brass flow control valve
$14.61
quality
John Deere AM100039 Hydro Control Valve fits 316
John Deere AM100039 Hydro Control Valve fits 316
$60.00
quality
Hayward GLC 2P A Solar Pool Heating Control System with 3 Way Valve Actuator an
Hayward GLC 2P A Solar Pool Heating Control System with 3 Way Valve Actuator an
$371.25
quality
Orbit 1 Anti Siphon Sprinkler Valve Model No 57624 Easy Install
Orbit 1 Anti Siphon Sprinkler Valve Model No 57624 Easy Install
$15.29
quality
Justyna Mico 4113 O1 SN Volume Control 3 4 Beaded Valve Trim only Satin Nickel
Justyna Mico 4113 O1 SN Volume Control 3 4 Beaded Valve Trim only Satin Nickel
$55.99
quality
Hunter PCZ 101 25 Pre Assembled Drip Zone Control Kit 1 Valve Filter Regulator
Hunter PCZ 101 25 Pre Assembled Drip Zone Control Kit 1 Valve Filter Regulator
$49.95
quality
HunterPGV 101 ASV 1 Pro Grade Anti Siphon Irrigation Control Valve PGV ASV
HunterPGV 101 ASV 1 Pro Grade Anti Siphon Irrigation Control Valve PGV ASV
$17.99
quality
Hunter PGV075 ASV 3 4 Pro Grade Anti Siphon Irrigation Control Valve PGV ASV
Hunter PGV075 ASV 3 4 Pro Grade Anti Siphon Irrigation Control Valve PGV ASV
$17.99
quality
KNGB KB3001AL Kingston Brass Vintage Wall Volume Control Valve
KNGB KB3001AL Kingston Brass Vintage Wall Volume Control Valve
$89.74
quality
KNGB KB3001AX Kingston Brass Vintage Wall Volume Control Valve
KNGB KB3001AX Kingston Brass Vintage Wall Volume Control Valve
$95.24
quality
KNGB KB3001BX Wall Volume Control Valve
KNGB KB3001BX Wall Volume Control Valve
$95.24
quality
KNGB KB3001EX Kingston Brass Elinbar Wall Volume Control Valve
KNGB KB3001EX Kingston Brass Elinbar Wall Volume Control Valve
$95.24
quality
KNGB KB3001FL Kingston Brass Vintage Wall Volume Control Valve
KNGB KB3001FL Kingston Brass Vintage Wall Volume Control Valve
$97.47
quality
KNGB KB3002AL Kingston Brass Vintage Wall Volume Control Valve
KNGB KB3002AL Kingston Brass Vintage Wall Volume Control Valve
$100.73
quality
KNGB KB3002AX Kingston Brass Vintage Wall Volume Control Valve
KNGB KB3002AX Kingston Brass Vintage Wall Volume Control Valve
$106.23
quality
KNGB KB3002BX Wall Volume Control Valve
KNGB KB3002BX Wall Volume Control Valve
$106.23
quality
KNGB KB3002DL Wall Volume Control Valve
KNGB KB3002DL Wall Volume Control Valve
$106.23
quality
KNGB KB3002FL Kingston Brass Vintage Wall Volume Control Valve
KNGB KB3002FL Kingston Brass Vintage Wall Volume Control Valve
$110.47
quality
KNGB KB3002PX Kingston Brass Vintage Wall Volume Control Valve
KNGB KB3002PX Kingston Brass Vintage Wall Volume Control Valve
$106.23
quality
KNGB KB3005AL Kingston Brass Vintage Wall Volume Control Valve
KNGB KB3005AL Kingston Brass Vintage Wall Volume Control Valve
$100.73
quality
KNGB KB3005AX Kingston Brass Vintage Wall Volume Control Valve
KNGB KB3005AX Kingston Brass Vintage Wall Volume Control Valve
$106.23
quality
KNGB KB3005BX Wall Volume Control Valve
KNGB KB3005BX Wall Volume Control Valve
$106.23
quality
KNGB KB3005DL Wall Volume Control Valve
KNGB KB3005DL Wall Volume Control Valve
$106.23
quality
KNGB KB3008AX Kingston Brass Vintage Wall Volume Control Valve
KNGB KB3008AX Kingston Brass Vintage Wall Volume Control Valve
$106.23
quality
KNGB KB3008DL Wall Volume Control Valve
KNGB KB3008DL Wall Volume Control Valve
$106.23
quality
KNGB KB3008FL Kingston Brass Vintage Wall Volume Control Valve
KNGB KB3008FL Kingston Brass Vintage Wall Volume Control Valve
$106.23
quality
Hayward SP071621 Pro 2 FIP Top Mount Vari Flo XL Sand Filter Control Valve
Hayward SP071621 Pro 2 FIP Top Mount Vari Flo XL Sand Filter Control Valve
$117.99
quality
HUNTER PGV075ASV S 3 4 19mmSLIP X SLIP ANTI SIPHON VALVE FLOW CONTROL PGV ASV
HUNTER PGV075ASV S 3 4 19mmSLIP X SLIP ANTI SIPHON VALVE FLOW CONTROL PGV ASV
$19.00
quality
Delta Windemere 1 Handle Temperature Control Valve Trim Kit in Oil Rubbed
Delta Windemere 1 Handle Temperature Control Valve Trim Kit in Oil Rubbed
$102.93
quality
RUBBERMAID 490251 Valve Control Module Brass And Plastic
RUBBERMAID 490251 Valve Control Module Brass And Plastic
$205.00
quality
Cub Cadet IH 1650 Tractor Mower Hydraulic Control Valve Mounting Bracket
Cub Cadet IH 1650 Tractor Mower Hydraulic Control Valve Mounting Bracket
$17.99
quality
NEW OEM STIHL String Trimmer Carburetor Control Valve FC HS FS 72 74 76 75 80 85
NEW OEM STIHL String Trimmer Carburetor Control Valve FC HS FS 72 74 76 75 80 85
$4.99
quality
Toro 53799 1 Inch Jar Top Valve with Flow Control
Toro 53799 1 Inch Jar Top Valve with Flow Control
$20.65
quality
Marpac 500P195 Ball Valve Replacement kit for Poolkeeper Water Level Controller
Marpac 500P195 Ball Valve Replacement kit for Poolkeeper Water Level Controller
$31.97
quality
Toto TSMA Volume Control Valve
Toto TSMA Volume Control Valve
$28.99
quality
JOHN DEERE 318 HYDRAULIC CONTROL VALVE STRAP PART  M84956
JOHN DEERE 318 HYDRAULIC CONTROL VALVE STRAP PART M84956
$10.00
quality
Cub Cadet 2084 Tractor Mower Power Steering Control Valve 5 Port
Cub Cadet 2084 Tractor Mower Power Steering Control Valve 5 Port
$224.99
quality
JOHN DEERE 318 HYDRAULIC CONTROL VALVE STRAP PART NO M84956
JOHN DEERE 318 HYDRAULIC CONTROL VALVE STRAP PART NO M84956
$10.00
quality
Pentair Rainbow 320 322 Chlorinator Control Valve R172086 17 2086
Pentair Rainbow 320 322 Chlorinator Control Valve R172086 17 2086
$26.99
quality
Toto TS6A Volume Control Valve Rough Valve
Toto TS6A Volume Control Valve Rough Valve
$59.99
quality
John Deere 210 212 214 216 140 312 314 hydraulic lift control valve AM33149
John Deere 210 212 214 216 140 312 314 hydraulic lift control valve AM33149
$30.00
quality
SALE Hansgrohe 17955621 Axor Pheonix Volume Control Valve in Oil Rubbed Bronze
SALE Hansgrohe 17955621 Axor Pheonix Volume Control Valve in Oil Rubbed Bronze
$110.00
quality
MOEN Moentrol Pressure Balancing Volume Control Tub and Shower Valve with Stops
MOEN Moentrol Pressure Balancing Volume Control Tub and Shower Valve with Stops
$94.49
quality
Hunter PGV 101MM 1 25mm Valve Male Thread With Flow Control PGV101MM
Hunter PGV 101MM 1 25mm Valve Male Thread With Flow Control PGV101MM
$15.29
quality
53707 1 inch jar top valve with flow control
53707 1 inch jar top valve with flow control
$24.83
quality
Whirlpool GE Range Oven Burner Valve Control 9448 for Old RV Stove
Whirlpool GE Range Oven Burner Valve Control 9448 for Old RV Stove
$35.00
quality
8 Chrome Rainfall Shower Head Valve Hand spray Control Shower Faucet Set
8 Chrome Rainfall Shower Head Valve Hand spray Control Shower Faucet Set
$54.90
quality
Wheel Horse D 160 D 200 D 180 Tractor Hydraulic Control Valve Lines
Wheel Horse D 160 D 200 D 180 Tractor Hydraulic Control Valve Lines
$19.99
quality
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Control Valve

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Lecture - 25 Flow Control Valves

Control Valve - The Versatile Control Element

Control valves are the valves used to control pressure, volume, liquid level and flow direction in a fluid transmission system. The device is capable of moulding flow at different degrees ranging from a minimum flow to the full capacity in response to a signal from an external control device. Being the most critical part of any control loop, the
control valve
is also known as "the final control element".

Usually, the most important part in hydraulic machinery is directional control valves. It has the ability to restrict and permit the actual flow. There are two types of directional control valves- hydraulic and pneumatic. While hydraulic directional control valve focuses on liquid working flow, pneumatic
directional control valve
is meant to control gaseous working fluid.

Most of the industries purchase the control valves on the basis of few static specifications like pressure ratings, flow capacity and fluid type. There are certain dynamic characteristics of a control valve which need to be kept in mind before making the final purchase decision. A right kind of choice will always be helpful to mitigate process-control-related problems. Some of the characteristics include: process-side error, stroking speed, positioning resolution, overshoot, installed gain, friction, dead band, and hysteresis and load sensitivity.

Control valves have few common features such as self-lubricating, chemical resistance and wear resistance. The quality of a good control valve can be judged through its temperature and pressure level that ranges from 60 degree F to + 400 degree F.

The ability of control valves depend on lot of factors. If the quality of control valves is good then it is highly useful to reduce process variability. It is very important that valve assembly should be optimized or fully developed as a unit. When the components of valve are designed as a complete assembly it yields the best dynamic performance. There are three important areas of design considerations such as valve response time, dead band and actuator/positioned design.

The efficiency of control valve can directly affect the profits of process plant. Control valve is the most crucial part that can create change in the process variable. It is very important to see that control valve is working in an accurate manner. The device can lead to excellent results if it is operated in a proper way. An organisation cannot achieve high level of success without focussing on good valve management. It may adversely affect the industry's quality production, profits and energy.

There are several ways to optimise the valve efficiency. The factors that can determine the optimum use of control valve depends on proper storage and protection of valve. It also depends on correct control valve selection for the application. There should be proper installation techniques and an effective predictive maintenance programme.

The basic types of control valves are ball valve, ceramic disc valve, butterfly valve, duplex ball valve, check valve, diaphragm valve, gate valve, choke valve, 3 hastelloy check valves, needle valve, globe valve, knife valve, piston valve, pinch valve, sampling valves, pressure relief valves, thermal expansion valve, spool valve, poppet valve and plug valve.

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